package io.datajek.springbasics.movierecommendersystem.lesson10;

import io.datajek.springbasics.movierecommendersystem.lesson9.ContentBasedFilter;
import io.datajek.springbasics.movierecommendersystem.lesson9.Movie;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

@SpringBootApplication
public class MovieRecommenderSystemApplication {

	public static void main(String[] args) {

		//ApplicationContext负责管理Bean和依赖关系。
		ApplicationContext appContext = SpringApplication.run(MovieRecommenderSystemApplication.class, args);

		//从ApplicationContext中获得并打印Single Bean
		ContentBasedFilter filter = appContext.getBean(ContentBasedFilter.class);
		System.out.println("\nContentBasedFilter bean with singleton scope");
		System.out.println(filter);

		//从Singleton Bean中获得并打印Prototype Bean两次
		Movie movie1 = filter.getMovie();
		Movie movie2 = filter.getMovie();
		Movie movie3 = filter.getMovie();

		System.out.println("\nMovie bean with prototype scope");
		System.out.println(movie1);
		System.out.println(movie2);
		System.out.println(movie3);

		//打印每种Bean的实例数
		System.out.println("\nContentBasedFilter instances created: "+ ContentBasedFilter.getInstances());
		System.out.println("Movie instances created: "+ Movie.getInstances());
	}

}